This is good example for a SPAM mail in name of Mrs Nancy.Williams Groupe Bank of Africa (Annexe) Burkina Faso. In fact all this may be fake information which just claims to pass on sum of money to your account US$20,500,000.00 as the beneficiary or next of kin. Such kind of amounts giving away is a funny fake thing. If such unclaimed money is available the local government may take that away in terms of escheats as unclaimed money for public development.
Keeping all the things aside his a nice illustration of a fake and SPAM mail that shot to the author's email:
Be aware of such bogus and fake emails and don't fall prey of such mails
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From: Mrs Nancy.Williams
Groupe Bank of Africa (Annexe) Burkina Faso
Foreign Department Operation.
Attention Please,